Finding the Fourth Proportional to 16,776.90, 23,149.53 and 9,703.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,776.90 : 23,149.53 = 9,703.98 : x
2. Step 2: Convert to fraction form
   16,776.90/23,149.53 = 9,703.98/x
3. Step 3: Cross multiply
   16,776.90x = 23,149.53 × 9,703.98
4. Step 4: Simplify right side
   16,776.90x = 224,642,576.13
5. Step 5: Solve for x
   x = 224,642,576.13/16,776.90
6. Step 6: Final answer
   x = 13,389.99